Test Procedures
MANGANESE, LOW RANGE
PAN METHOD • CODE 3658-01-SC
QUANTITY
CONTENTS
CODE
2 x 60 mL
*Hardness Buff er Reagent
*4255-H
30 mL
*Manganese Indicator Reagent
*3956-G
15 mL
*Sodium Cyanide, 10%
*6565-E
1
Pipet, 0.5 mL, plastic
0369
1
Pipet, 1.0 mL, plastic
0354
*WARNING:
Reagents marked with an * are considered to be potential health hazards. To
view or print a Safety Data Sheet (SDS) for these reagents go to www.lamotte.com.
Search for the four digit reagent code number listed on the reagent label, in the contents
list or in the test procedures. Omit any letter that follows or precedes the four digit code
number. For example, if the code is 4450WT-H, search 4450. To obtain a printed copy,
contact LaMotte by email, phone or fax.
Emergency information for all LaMotte reagents is available from Chem-Tel:
(US, 1-800-255-3924) (International, call collect, 813-248-0585).
Manganese is present in ground water in the divalent state due to the lack of oxygen. In
surface waters manganese may be in various oxidation states as soluble complexes or as
suspended compounds. Manganese is rarely present in excess of 1 mg/L. It may cause an
objectionable taste or cause staining problems in laundry, but manganese levels normally
encountered in water seldom produce any health hazard.
Manganese is removed from water by various means including chemical precipitation, pH
adjustment, aeration, superchlorination and the use of ion exchange resins.
APPLICATION:
Drinking and surface waters; domestic and industrial
wastewaters.
RANGE:
0.00–0.70 ppm Manganese
MDL:
0.02 ppm
METHOD:
PAN (1–(2–Pyridylazo)–2–Naphthol) forms a red complex with
Manganese (Mn
2+
) at a pH of 10 to 11.
SAMPLE HANDLING &
PRESERVATION:
Manganese may oxidize readily in neutral water and precipitate
from solution. It may adhere to or be absorbed by container
walls, especially glass. Acidifi ed sample can be stored in
plastic.
INTERFERENCES:
None. Test is quite specifi c.
SMART Spectro 2 Test Procedures 05.02.16
MANGANESE
, LOW RANGE
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